2557180799 has 2 divisors, whose sum is σ = 2557180800. Its totient is φ = 2557180798.

The previous prime is 2557180757. The next prime is 2557180811. The reversal of 2557180799 is 9970817552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2557180799 - 2⁸ = 2557180543 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2557180799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557180709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278590399 + 1278590400.

It is an arithmetic number, because the mean of its divisors is an integer number (1278590400).

Almost surely, 2^2557180799 is an apocalyptic number.

2557180799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557180799 is an equidigital number, since it uses as much as digits as its factorization.

2557180799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 53.

The square root of 2557180799 is about 50568.5752122798. The cubic root of 2557180799 is about 1367.4784097783.

The spelling of 2557180799 in words is "two billion, five hundred fifty-seven million, one hundred eighty thousand, seven hundred ninety-nine".